New method uses DNA, Gold Nanoparticles and Top-Down Lithography to Fabricate Optically Active Structures

Northwestern University researchers, including CBES Principal Investigator Chad Mirkin, have developed a first-of-its-kind technique for creating entirely new classes of optical materials and devices that could lead to light bending and cloaking devices.  Using DNA as a key tool, the interdisciplinary team took gold nanoparticles of different sizes and shapes and arranged them in two and three dimensions to form optically active superlattices. Structures with specific configurations could be programmed through choice of particle type and both DNA-pattern and sequence to exhibit almost any color across the visible spectrum.

The full press release and link to the publication can be found HERE.

Mirkin and Glotzer Lab's Research Feartured on Cover of NNI's Supplement to President's 2018 Budget

Images from a joint CBES collaboration between the groups of Northwestern's Chad Mirkin and University of Michigan's Sharlon Glotzer have been featured on the front and back covers of The National Nanotechnology Initiative's Supplement to the President's 2018 Budget.

The images are based on a recent publication in Science (full publication can be found HERE) in which CBES researchers created colloidal analogs of clathrates in which bipyramidal gold nanoparticles functionalized with DNA molecules assembled into polyhedral clusters to create open-pore structures. These clathrate colloidal crystals exhibit extraordinary structural complexity and substantially broaden both the scope and the possibilities provided by DNA-inspired methodologies.  The back cover shows a simulation of assembled gold nanoparticles, and the front cover depicts the same structure in a ball-and-stick layout to highlight the cage arrangement.

Congratulations to the Mirkin and Glotzer Labs for this accomplishment!

Follow the link below to view a digital version of the budget:

NNI Supplement to President's 2018 Budget

We have a Quorum

From the smallest cell to humans, most organisms can sense their local population density and change behavior in crowded environments. For bacteria and social insects, this behavior is referred to as “quorum sensing.” Researchers at the University of Pittsburgh’s Swanson School of Engineering have utilized computational modeling to mimic such quorum sensing behavior in synthetic materials, which could lead to devices with the ability for self-recognition and self-regulation.

The findings are based on research into biomimetic synthetic materials by CBES PI Anna C. Balazs, Distinguished Professor of Chemical and Petroleum Engineering, and post-doctoral associate Henry Shum, who is now an assistant professor of applied mathematics at the University of Waterloo.

The full article can be read HERE.

Most Complex Nanoparticle Crystal Ever Made by Design

Sharon C. Glotzer and Chad A. Mirkin, along with members of their CBES groups, have recently published their study titled "Clathrate Colloidal Crystals" in Science.  This study demonstrates that some of nature’s most complicated structures can be deliberately assembled if researchers can control the shapes of the particles and the way they connect using DNA.  The work performed was a collaborative effort between researchers at Northwestern University and the University of Michigan, and described as "a great example of what can be achieved by experimentalists and simulators teaming up," by Glotzer.

The Northwestern press release can be viewed HERE.

Stacey Chin Nominated as EFRC Early Career Network Representative

CBES Member Stacey Chin has been nominated as an Energy Frontier Reserach Center (EFRC) Early Career Network (ECN) Representative.  The EFRC ECN has planned many successful events for the EFRC community.  These include virtual webinars on Collaborative Technologies, Academic Interviews, Grant Writing, and Start-ups, as well as meet-ups at the Spring MRS, Spring ACS, March APS, and Fall MRS meetings. 

Stacey will be co-leading a subcommittee that is planning a panel event on diversity and underrepresentation in STEM as well as participating in another committee that is planning social excursions during the EFRC PI meeting in July.

Oliver Dumele accepts Leopoldina Postdoctoral Scholarship

CBES member Oliver Dumele of the Stupp Group has recently been offered and accepted the Leopoldina Postdoctoral Fellowship.  The program is aimed at up-and-coming young scientists from German-speaking countries who have already begun conducting independent research in natural science and medicine. Scholarship recipients are given the opportunity to carry out their own independent project abroad at one of the most renowned research institutes in their field.  Oliver has demonstrated exceptional research ability and scientific achievement with his continued work on CBES projects. 

More information on the Leopoldina Postdoctoral Scholarship program can be found on their website.

Nanoscience expert receives 2016 Dickson Prize in Science

CBES Investigator Chad A. Mirkin has been awarded the 2016 Dickison Prize in Science by Carnagie Mellon University.  This annual prize is awarded to those who make outstanding contributions to science.  Professor Mirkin will accept the award and present his lecture, "Nanotechnology: Small Things Matter" on Februrary 2nd at Carnagie Mellon University.

Read the full article HERE.

Expedition Solar Energy: Emily Weiss Shares the Path to Her Leading Role in Energy Research

Emily Weiss, a Principle Investigator in CBES as well as ANSER, was recently interviewed for the EFRC Newsletter.  Weiss details how and why she chose to study the sciences.  Weiss' research in CBES aims to create artificial materials and microrobots that transport and transform energy in similar ways to living organisms.

Read the full article HERE.

EFRC Fall 2016 Newsletter

First CBES Travel Award Recipient

Congratulations to Syeda Sabrina for being the first recipient of the Center for Bio-Inspired Energy Science Travel Award!

Sabrina traveled to San Francisco to attend the annual meeting for the American Institute of Chemical Engineers to give a presentation on her research titled “Shape-Directed Micro-Rotors Powered by Ultrasound”.  The talk presented shape-directed rotational motion of Au micro-gears (spinners) driven by ultrasound as well as the investigation of the role of asymmetry, size and number of fins on the rotational speed of individual spinners.

For more information regarding the CBES Travel Award please view the Travel Award application form.

Olvera de la Cruz to Receive 2017 APS Polymer Physics Prize

Northwestern Engineering’s Monica Olvera de la Cruz has been selected to receive the 2017 Polymer Physics Prize from the American Physical Society (APS).

Olvera de la Cruz was selected for her “outstanding contributions to the theoretical understanding of polymers and the effects of electrostatic interactions on their structure and properties.”

More information regarding the award and Monica Olvera de la Cruz's research can be found here.